Changing front

This commit is contained in:
2023-01-16 17:44:37 +01:00
parent 0b8a93b256
commit 4fe4be7730
48586 changed files with 4725790 additions and 17464 deletions

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declare const PACKET_TYPES: any;
declare const PACKET_TYPES_REVERSE: any;
declare const ERROR_PACKET: Packet;
export { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };
export declare type PacketType = "open" | "close" | "ping" | "pong" | "message" | "upgrade" | "noop" | "error";
export declare type RawData = any;
export interface Packet {
type: PacketType;
options?: {
compress: boolean;
};
data?: RawData;
}
export declare type BinaryType = "nodebuffer" | "arraybuffer" | "blob";

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const PACKET_TYPES = Object.create(null); // no Map = no polyfill
PACKET_TYPES["open"] = "0";
PACKET_TYPES["close"] = "1";
PACKET_TYPES["ping"] = "2";
PACKET_TYPES["pong"] = "3";
PACKET_TYPES["message"] = "4";
PACKET_TYPES["upgrade"] = "5";
PACKET_TYPES["noop"] = "6";
const PACKET_TYPES_REVERSE = Object.create(null);
Object.keys(PACKET_TYPES).forEach(key => {
PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;
});
const ERROR_PACKET = { type: "error", data: "parser error" };
export { PACKET_TYPES, PACKET_TYPES_REVERSE, ERROR_PACKET };

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export declare const encode: (arraybuffer: ArrayBuffer) => string;
export declare const decode: (base64: string) => ArrayBuffer;

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const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
// Use a lookup table to find the index.
const lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
for (let i = 0; i < chars.length; i++) {
lookup[chars.charCodeAt(i)] = i;
}
export const encode = (arraybuffer) => {
let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';
for (i = 0; i < len; i += 3) {
base64 += chars[bytes[i] >> 2];
base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
base64 += chars[bytes[i + 2] & 63];
}
if (len % 3 === 2) {
base64 = base64.substring(0, base64.length - 1) + '=';
}
else if (len % 3 === 1) {
base64 = base64.substring(0, base64.length - 2) + '==';
}
return base64;
};
export const decode = (base64) => {
let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;
if (base64[base64.length - 1] === '=') {
bufferLength--;
if (base64[base64.length - 2] === '=') {
bufferLength--;
}
}
const arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);
for (i = 0; i < len; i += 4) {
encoded1 = lookup[base64.charCodeAt(i)];
encoded2 = lookup[base64.charCodeAt(i + 1)];
encoded3 = lookup[base64.charCodeAt(i + 2)];
encoded4 = lookup[base64.charCodeAt(i + 3)];
bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
}
return arraybuffer;
};

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import { Packet, BinaryType, RawData } from "./commons.js";
declare const decodePacket: (encodedPacket: RawData, binaryType?: BinaryType) => Packet;
export default decodePacket;

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import { ERROR_PACKET, PACKET_TYPES_REVERSE } from "./commons.js";
import { decode } from "./contrib/base64-arraybuffer.js";
const withNativeArrayBuffer = typeof ArrayBuffer === "function";
const decodePacket = (encodedPacket, binaryType) => {
if (typeof encodedPacket !== "string") {
return {
type: "message",
data: mapBinary(encodedPacket, binaryType)
};
}
const type = encodedPacket.charAt(0);
if (type === "b") {
return {
type: "message",
data: decodeBase64Packet(encodedPacket.substring(1), binaryType)
};
}
const packetType = PACKET_TYPES_REVERSE[type];
if (!packetType) {
return ERROR_PACKET;
}
return encodedPacket.length > 1
? {
type: PACKET_TYPES_REVERSE[type],
data: encodedPacket.substring(1)
}
: {
type: PACKET_TYPES_REVERSE[type]
};
};
const decodeBase64Packet = (data, binaryType) => {
if (withNativeArrayBuffer) {
const decoded = decode(data);
return mapBinary(decoded, binaryType);
}
else {
return { base64: true, data }; // fallback for old browsers
}
};
const mapBinary = (data, binaryType) => {
switch (binaryType) {
case "blob":
return data instanceof ArrayBuffer ? new Blob([data]) : data;
case "arraybuffer":
default:
return data; // assuming the data is already an ArrayBuffer
}
};
export default decodePacket;

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import { Packet, BinaryType, RawData } from "./commons.js";
declare const decodePacket: (encodedPacket: RawData, binaryType?: BinaryType) => Packet;
export default decodePacket;

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import { ERROR_PACKET, PACKET_TYPES_REVERSE } from "./commons.js";
const decodePacket = (encodedPacket, binaryType) => {
if (typeof encodedPacket !== "string") {
return {
type: "message",
data: mapBinary(encodedPacket, binaryType)
};
}
const type = encodedPacket.charAt(0);
if (type === "b") {
const buffer = Buffer.from(encodedPacket.substring(1), "base64");
return {
type: "message",
data: mapBinary(buffer, binaryType)
};
}
if (!PACKET_TYPES_REVERSE[type]) {
return ERROR_PACKET;
}
return encodedPacket.length > 1
? {
type: PACKET_TYPES_REVERSE[type],
data: encodedPacket.substring(1)
}
: {
type: PACKET_TYPES_REVERSE[type]
};
};
const mapBinary = (data, binaryType) => {
const isBuffer = Buffer.isBuffer(data);
switch (binaryType) {
case "arraybuffer":
return isBuffer ? toArrayBuffer(data) : data;
case "nodebuffer":
default:
return data; // assuming the data is already a Buffer
}
};
const toArrayBuffer = (buffer) => {
const arrayBuffer = new ArrayBuffer(buffer.length);
const view = new Uint8Array(arrayBuffer);
for (let i = 0; i < buffer.length; i++) {
view[i] = buffer[i];
}
return arrayBuffer;
};
export default decodePacket;

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import { Packet, RawData } from "./commons.js";
declare const encodePacket: ({ type, data }: Packet, supportsBinary: boolean, callback: (encodedPacket: RawData) => void) => void;
export default encodePacket;

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import { PACKET_TYPES } from "./commons.js";
const withNativeBlob = typeof Blob === "function" ||
(typeof Blob !== "undefined" &&
Object.prototype.toString.call(Blob) === "[object BlobConstructor]");
const withNativeArrayBuffer = typeof ArrayBuffer === "function";
// ArrayBuffer.isView method is not defined in IE10
const isView = obj => {
return typeof ArrayBuffer.isView === "function"
? ArrayBuffer.isView(obj)
: obj && obj.buffer instanceof ArrayBuffer;
};
const encodePacket = ({ type, data }, supportsBinary, callback) => {
if (withNativeBlob && data instanceof Blob) {
if (supportsBinary) {
return callback(data);
}
else {
return encodeBlobAsBase64(data, callback);
}
}
else if (withNativeArrayBuffer &&
(data instanceof ArrayBuffer || isView(data))) {
if (supportsBinary) {
return callback(data);
}
else {
return encodeBlobAsBase64(new Blob([data]), callback);
}
}
// plain string
return callback(PACKET_TYPES[type] + (data || ""));
};
const encodeBlobAsBase64 = (data, callback) => {
const fileReader = new FileReader();
fileReader.onload = function () {
const content = fileReader.result.split(",")[1];
callback("b" + content);
};
return fileReader.readAsDataURL(data);
};
export default encodePacket;

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import { Packet, RawData } from "./commons.js";
declare const encodePacket: ({ type, data }: Packet, supportsBinary: boolean, callback: (encodedPacket: RawData) => void) => void;
export default encodePacket;

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import { PACKET_TYPES } from "./commons.js";
const encodePacket = ({ type, data }, supportsBinary, callback) => {
if (data instanceof ArrayBuffer || ArrayBuffer.isView(data)) {
const buffer = toBuffer(data);
return callback(encodeBuffer(buffer, supportsBinary));
}
// plain string
return callback(PACKET_TYPES[type] + (data || ""));
};
const toBuffer = data => {
if (Buffer.isBuffer(data)) {
return data;
}
else if (data instanceof ArrayBuffer) {
return Buffer.from(data);
}
else {
return Buffer.from(data.buffer, data.byteOffset, data.byteLength);
}
};
// only 'message' packets can contain binary, so the type prefix is not needed
const encodeBuffer = (data, supportsBinary) => {
return supportsBinary ? data : "b" + data.toString("base64");
};
export default encodePacket;

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import encodePacket from "./encodePacket.js";
import decodePacket from "./decodePacket.js";
import { Packet, PacketType, RawData, BinaryType } from "./commons.js";
declare const encodePayload: (packets: Packet[], callback: (encodedPayload: string) => void) => void;
declare const decodePayload: (encodedPayload: string, binaryType?: BinaryType) => Packet[];
export declare const protocol = 4;
export { encodePacket, encodePayload, decodePacket, decodePayload, Packet, PacketType, RawData, BinaryType };

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import encodePacket from "./encodePacket.js";
import decodePacket from "./decodePacket.js";
const SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text
const encodePayload = (packets, callback) => {
// some packets may be added to the array while encoding, so the initial length must be saved
const length = packets.length;
const encodedPackets = new Array(length);
let count = 0;
packets.forEach((packet, i) => {
// force base64 encoding for binary packets
encodePacket(packet, false, encodedPacket => {
encodedPackets[i] = encodedPacket;
if (++count === length) {
callback(encodedPackets.join(SEPARATOR));
}
});
});
};
const decodePayload = (encodedPayload, binaryType) => {
const encodedPackets = encodedPayload.split(SEPARATOR);
const packets = [];
for (let i = 0; i < encodedPackets.length; i++) {
const decodedPacket = decodePacket(encodedPackets[i], binaryType);
packets.push(decodedPacket);
if (decodedPacket.type === "error") {
break;
}
}
return packets;
};
export const protocol = 4;
export { encodePacket, encodePayload, decodePacket, decodePayload };

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{
"name": "engine.io-parser",
"type": "module",
"browser": {
"./encodePacket.js": "./encodePacket.browser.js",
"./decodePacket.js": "./decodePacket.browser.js"
}
}